William Barrett Heisten (born March 19, 1980) is an American former professional ice hockey forward.
He played ten games with the Rangers before being traded to the Dallas Stars along with Manny Malhotra for Martin Ručinský and Roman Lyashenko.
In 2005, he was contemplating retirement when his brother Chris asked him to play alongside him in the ECHL for their hometown team, the Alaska Aces.
He returned to action during a December 19 game at Victoria, but was removed after symptoms resulting from the concussion surfaced again.
After missing 15 consecutive games, Barrett announced retirement on January 18, in consideration of his long-term health.